Page History

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• • is run four times daily:
    • base times 00 UTC and 12 UTC, covering the forecast period Day 0 to Day 15 (T+0 to T+360).  
      • Dissemination schedule and forecast step frequency - Atmospheric model analysis and 15 day forecast of Ensemble Control Forecast (ex-HRES) (Sets I-i, I-ii, I-iii as shown for 00UTC and 12UTC base times).
    • base times 06UTC and 18UTC, covering the forecast period Day 0 to Day 3.5 6 (T+0 to T+90144).
      • Dissemination schedule and forecast step frequency - Atmospheric model analysis and 90 hour 6 day forecast of Ensemble Control Forecast (ex-HRES) (Set I-i as shown for 06UTC and 18UTC base times).
  • has horizontal resolution of 9 km
  • has vertical resolution of 137 model levels.
  • has land-atmosphere and ocean-atmosphere coupling.
  • Results from these runs are:
    • used in Early cut off analysis (SCDA) and Long window data analysis (LWDA).

The link gives a description of higher detail output and derived products of the medium range forecast output.  Some are additional products that are available by arrangement.

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• • is run four times daily:
    • base times 00 UTC and 12 UTC, covering the forecast period Day 0 to Day 15 (T+0 to T+360).
      • Dissemination schedule and - Atmospheric model analysis and 15 day forecast ensemble (Set I-iii as shown for 00UTC and 12UTC base times).
    • base times 06UTC and 18UTC, covering the forecast period Day 0 to Day 3.5 6 (T+0 to T+90144).
      
      • Dissemination schedule - Atmospheric model analysis and 90 hour forecast ensemble 3.5 day forecast ensemble (Set I-ii iii as shown for 06UTC and 18UTC base times).
  • has horizontal resolution of 9 km
  • has vertical resolution of 137 model levels.
  • has land-atmosphere and ocean-atmosphere coupling.

The link gives a description of higher detail output and derived products of the medium range ensemble forecast output.  Some are additional products that are available by arrangement.

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• • is run four times daily:
    • base times 00UTC, 06UTC, 12UTC, 18UTC covering the forecast period Day 0 to Day 15 (T+0 to T+360).
      • Dissemination schedule - Deterministic AIFS forecast (Set IX-i-a,  IX-i-b) released one hour after medium range forecasts given at Atmospheric model analysis and 15 day forecast of Ensemble Control Forecast (ex-HRES) (Sets I-i, I-ii, I-iii as shown for 00UTC and 12UTC base times).

The link gives a description of higher detail output and derived products of the Artificial Intelligence Forecasting System forecast output.

Sub-seasonal Range forecasts

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• • is run once monthly:
    • base time 00UTC on 1st of each month and run on the 5th of each month covering the forecast period  Month 0 1 to month Month 7 month forecast (extended to month Month 13 every quarter).
      
      • Dissemination schedule - Seasonal forecast.

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• • is run four times daily:
    • base time 00UTC and 12UTC data times giving 15day forecasts (T+0 to T+360).
      • Dissemination schedule - Ocean wave model 15 day forecast Ensemble Control Forecast (ex-HRES) WAM (Set II as shown for 00UTC and 12UTC base times) .
    • base time 06UTC and 18UTC data times giving 6day forecasts (T+0 to T+90).
      • Dissemination schedule - Ocean wave model 90 hour 6 day forecast Ensemble Control Forecast (ex-HRES) WAM (Sets Set II as shown for 06UTC and 18UTC base times).is associated with the sub-seasonal range forecasts. 

• • is associated with ensemble Control Forecast (ex-HRES) forecasts
  • has horizontal resolution of 9 Km.
  • has ocean-atmosphere coupling.

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• • is run twice daily:
    • base time 00UTC and 12UTC data times giving 15day 15 day forecasts (T+0 to T+360).
      • Dissemination schedule - Ocean wave model 15 day ensemble forecast WAM (Sets IV-i, IV-ii, IV-iii).

• • is associated with the medium range forecasts.
  • has horizontal resolution of 9 Km.
  • has ocean-atmosphere coupling.
  • has 50 ensemble members plus an unperturbed control member.

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(FUG Associated with Cy49r1)

Proposed Catalogue....when 49r1 installed.

Group A Analysis Datasets:

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)

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• Set I-i: Atmosphere.
• Set I-ii: Wave.
• Set II: Ensemble Data Assimilation.

Group B Medium range forecasts:

• Set III: Perturbed forecast (Atmosphere).
• Set IV: Perturbed forecast (Wave).
• Set V: Control forecast (Atmosphere).
• Set VI: Control forecast (Wave).

Group C: Sub-seasonal and Seasonal forecasts:

• Set VII: Sub-seasonal forecasts (change from Set VI - out to 46 days)
• Set VIII: Seasonal forecasts:
  • Subset VIII-i: 7 month forecast.
  • Subset VIII-ii: 13 month forecast.
  • Subset VIII-iii: 24 month forecast.

Group D: AIFS:

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